Re: preempt-rt, NUMA and strange latency traces

Sébastien Dugué
2006-02-08T10:44:06Z

On Wed, 2006-02-08 at 11:25 +0100, Ingo Molnar wrote:
> * Steven Rostedt <rostedt@goodmis.org> wrote:
>
> > > I've been experimenting with 2.6.15-rt16 on a dual 2.8GHz Xeon box
> > > with quite good results and decided to make a run on a NUMA dual node
> > > IBM x440 (8 1.4GHz Xeon, 28GB ram).
> > >
> > > However, the kernel crashes early when creating the slabs. Does the
> > > current preempt-rt patchset supports NUMA machines or has support
> > > been disabled until things settle down?
> >
> > Yeah, currently the -rt patch doesn't work well with NUMA.
>
> FYI, i've got a new port of upstream slab.c to -rt, which should work on
> NUMA too. It'll be in -rt17 (later today or tomorrow).
>
> Ingo

Great, I sure will try it.

Thanks.

Sébastien.